/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Framework/TypedElementRegistry.h
The associated handle ID should be something that can externally be used to uniquely identify this element, until DestroyElementHandle is called on this handle.
FTypedElementOwner CreateElement ( const [FName](API\Runtime\Core\UObject\FName) InElementTypeName, const FTypedHandleElementId InElementId )